The bill would require manufacturers to provide a list of ingredients, fragrances and colorants included in a “designated trait” list. Chemicals on the designated trait list would include those known to be carcinogenic, mutagenic, teratogenic or neurotoxic.

Passed in May, the bill has already been amended and approved by the state assembly’s Labor and Employment and Environmental Safety and Toxic Materials committees. Opponents of the bill argue that compliance will be expensive and burdensome and may in some cases threaten trade secrets. If the bill passes, manufacturers will be required to comply by January 1, 2021.